Field notes

Occasional write-ups about home servers, storage and small networks. No comments, no tracking.

Rebuilding the backup box after a disk failure

7 August 2026 · 9 min read

The array had been degraded for eleven days before I noticed, which says more about my monitoring than about the disk. This is what the rebuild looked like, how long it actually took, and the three checks I added afterwards so the next failure is loud instead of quiet.

A boring router is a good router

22 July 2026 · 6 min read

I replaced a clever setup with a dull one and everything got better. Notes on why I stopped running services on the gateway, and what I moved them to instead.

Measuring latency properly

3 July 2026 · 12 min read

Averages hide everything interesting. A short tour of percentiles, why the ninety-ninth is the one that wakes you up at night, and a small script that plots them from ordinary ping output.

The archive is being reorganised. Older posts from 2023 and 2024 are temporarily reachable only through the sitemap.

Recent changes

DateChangeNotesSize
2026-08-07Backup rebuild write-upadded18 KB
2026-07-22Router postadded11 KB
2026-07-14Uses pageupdated6 KB
2026-07-03Latency postadded24 KB
2026-06-19Feed switched to Atomchanged